EP 2667241 B1 20180704 - A method of manufacturing a spectacle lens providing an astigmatic correction and spectacles including such spectacle lens
Title (en)
A method of manufacturing a spectacle lens providing an astigmatic correction and spectacles including such spectacle lens
Title (de)
Verfahren zur Herstellung eines Brillenglases mit astigmatischer Korrektur und Brille mit mit diesem Brillenglas
Title (fr)
Procédé de fabrication d'un verre de lunettes fournissant une correction astigmate et lunettes comprenant un tel verre de lunettes
Publication
Application
Priority
DE 102012010221 A 20120523
Abstract (en)
[origin: EP2667241A1] A method of manufacturing a spectacle lens providing at least an astigmatic correction comprises: measuring a direction of an axis of an astigmatism of an eye for each of at least three different directions of gaze of the eye; determining a position of the spectacle lens relative to the eye; and computing a shape of a surface of the spectacle lens based on the determined position of the spectacle lens relative to the eye and the at least three measured directions of the axis of the astigmatism. Herein, a primary orientation of the eye can be determined based on the at least three measured directions of the axis of the astigmatism, wherein the shape of the surface of the spectacle lens is calculated based on the determined position of the spectacle lens relative to the eye and by applying Listing's Law based on the determined primary orientation of the eye.
IPC 8 full level
G02C 7/02 (2006.01); A61B 3/103 (2006.01); G02C 7/06 (2006.01)
CPC (source: EP US)
G02C 7/02 (2013.01 - US); G02C 7/024 (2013.01 - US); G02C 7/025 (2013.01 - US); G02C 7/027 (2013.01 - EP US); G02C 7/061 (2013.01 - EP US); A61B 3/1035 (2013.01 - EP US); G02C 7/028 (2013.01 - EP US)
Citation (examination)
ANONYMOUS: "Listing's law - Wikipedia, the free encyclopedia", 16 July 2012 (2012-07-16), XP055352974, Retrieved from the Internet <URL:http://web.archive.org/web/20120716232827/http://en.wikipedia.org/wiki/Listing's_law> [retrieved on 20170308]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
DOCDB simple family (publication)
EP 2667241 A1 20131127; EP 2667241 B1 20180704; CN 103513444 A 20140115; CN 103513444 B 20170531; DE 102012010221 A1 20131128; EP 3358393 A1 20180808; EP 3358393 B1 20190102; US 2013314666 A1 20131128; US 9459468 B2 20161004
DOCDB simple family (application)
EP 13002665 A 20130522; CN 201310304027 A 20130523; DE 102012010221 A 20120523; EP 17210323 A 20130522; US 201313901270 A 20130523